No, there are not medications to address sensory integration issues per se. However, it is not unusual for children with sensory integration problems to display other conditions as well. ADHD is common in children who display SID. You are doing the sensible thing by proceeding with the evaluations. It may well be that the assessments can pinpoint the sensory integration problems and also pinpoint any other conditions which might warrant treatment. If ADHD or any mood disorder, for example, are diagnosed, medications are available, though we generally try to steer clear of medicine for such young children unless it is clearly, very clearly, in their best interest.